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Last change
on this file since 591 was
253,
checked in by emillour, 14 years ago
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Generic GCM
- Massive update to version 0.7
EM+RW
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File size:
1.8 KB
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| 1 | subroutine totalcloudfrac(rneb,totalrneb) |
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| 2 | |
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| 3 | implicit none |
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| 4 | |
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| 5 | !================================================================== |
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| 6 | ! |
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| 7 | ! Purpose |
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| 8 | ! ------- |
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| 9 | ! Calculates the total cloud fraction |
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| 10 | ! |
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| 11 | ! Authors |
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| 12 | ! ------- |
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| 13 | ! Adapted from the LMDTERRE code by B Charnay (2010) |
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| 14 | ! |
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| 15 | !================================================================== |
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| 16 | |
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| 17 | #include "dimensions.h" |
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| 18 | #include "dimphys.h" |
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| 19 | #include "comcstfi.h" |
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| 20 | #include "tracer.h" |
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| 21 | #include "fisice.h" |
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| 22 | #include "comgeomfi.h" |
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| 23 | #include "comdiurn.h" |
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| 24 | |
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| 25 | real rneb(ngridmx,nlayermx) ! cloud fraction |
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| 26 | real totalrneb(ngridmx) ! total cloud fraction |
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| 27 | |
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| 28 | integer recovery |
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| 29 | parameter(recovery=1) |
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| 30 | |
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| 31 | ! hypothesis behind recovery. value: |
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| 32 | ! 1 = random recovery |
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| 33 | ! 2 = maximal recovery |
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| 34 | ! 3 = minimal recovery |
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| 35 | |
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| 36 | |
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| 37 | ! Local variables |
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| 38 | integer ig, l |
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| 39 | real clear |
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| 40 | |
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| 41 | do ig=1,ngridmx |
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| 42 | totalrneb(ig) = 0. |
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| 43 | |
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| 44 | if (recovery.eq.1) then |
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| 45 | clear = (1.-rneb(ig,1)) |
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| 46 | do l=2,nlayermx |
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| 47 | clear = clear*(1.-rneb(ig,l)) |
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| 48 | enddo |
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| 49 | totalrneb(ig) = 1.-clear |
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| 50 | |
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| 51 | elseif (recovery.eq.2) then |
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| 52 | totalrneb(ig) = rneb(ig,1) |
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| 53 | do l=2,nlayermx |
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| 54 | totalrneb(ig) = max(rneb(ig,l),totalrneb(ig)) |
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| 55 | enddo |
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| 56 | |
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| 57 | elseif (recovery.eq.3) then |
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| 58 | totalrneb(ig) = rneb(ig,1) |
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| 59 | do l=2,nlayermx |
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| 60 | totalrneb(ig) = min(rneb(ig,l),totalrneb(ig)) |
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| 61 | enddo |
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| 62 | endif ! (recovery=) |
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| 63 | |
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| 64 | totalrneb(ig) = min(1.,totalrneb(ig)) |
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| 65 | totalrneb(ig) = max(0.,totalrneb(ig)) |
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| 66 | |
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| 67 | enddo ! (ig=) |
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| 68 | |
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| 69 | |
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| 70 | end subroutine totalcloudfrac |
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